package com.etoonet.android.updater;

import android.annotation.TargetApi;
import android.content.ContentResolver;
import android.content.ContentUris;
import android.content.Context;
import android.database.Cursor;
import android.net.Uri;
import android.os.Build;
import android.os.Environment;
import android.provider.DocumentsContract;
import android.provider.MediaStore;

/**
 * 类名：AndroidUriUtils <br/>
 * 描述：Uri信息获取工具类
 * 创建时间：2017/11/09 22:02
 *
 * @author hanter
 * @version 1.0
 */
class AndroidUriUtils {

    public static long getRealSize(Context context, Uri uri) {
        Cursor cursor = null;
        try {
            String[] projection = {MediaStore.Audio.Media.SIZE};
            cursor = context.getContentResolver().query(uri, projection, null, null, null);
            if (cursor != null) {
                int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.SIZE);
                cursor.moveToFirst();
                return cursor.getLong(columnIndex);
            } else {
                return -1L;
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

    public static String getName(Context context, Uri uri) {
        Cursor cursor = null;
        try {
            String[] projection = {MediaStore.Audio.Media.DISPLAY_NAME};

            cursor = context.getContentResolver().query(uri, projection, null, null, null);

            if (cursor != null) {
                int columnIndex = cursor.getColumnIndexOrThrow(MediaStore.Audio.Media.DISPLAY_NAME);
                cursor.moveToFirst();
                return cursor.getString(columnIndex);
            } else {
                return null;
            }
        } finally {
            if (cursor != null) {
                cursor.close();
            }
        }
    }

    public static String getRealFilePath(Context context, Uri uri) {
        final String scheme = uri.getScheme();
        String path = null;

        if (Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT) {
            path = getPath(context, uri);
        } else {
            if (scheme == null) {
                path = uri.getPath();
            } else if (ContentResolver.SCHEME_FILE.equals(scheme)) {
                path = uri.getPath();
            } else if (ContentResolver.SCHEME_CONTENT.equals(scheme)) {
                Cursor cursor = context.getContentResolver().query(uri,
                        new String[]{MediaStore.Images.ImageColumns.DATA}, null, null, null);
                if (null != cursor) {
                    if (cursor.moveToFirst()) {
                        int index = cursor.getColumnIndex(MediaStore.Images.ImageColumns.DATA);
                        if (index > -1) {
                            path = cursor.getString(index);
                        }
                    }
                    cursor.close();
                }
            }
        }
        return path;
    }

    /**
     * 专为Android4.4设计的从Uri获取文件绝对路径，以前的方法已不好使
     */
    @TargetApi(Build.VERSION_CODES.KITKAT)
    private static String getPath(final Context context, final Uri uri) {

        final boolean isKitKat = Build.VERSION.SDK_INT >= Build.VERSION_CODES.KITKAT;

        // DocumentProvider
        if (isKitKat && DocumentsContract.isDocumentUri(context, uri)) {
            // ExternalStorageProvider
            if (isExternalStorageDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                if ("primary".equalsIgnoreCase(type)) {
                    return Environment.getExternalStorageDirectory() + "/" + split[1];
                }
            }
            // DownloadsProvider
            else if (isDownloadsDocument(uri)) {

                final String id = DocumentsContract.getDocumentId(uri);
                final Uri contentUri = ContentUris.withAppendedId(
                        Uri.parse("content://downloads/public_downloads"), Long.valueOf(id));

                return getDataColumn(context, contentUri, null, null);
            }
            // MediaProvider
            else if (isMediaDocument(uri)) {
                final String docId = DocumentsContract.getDocumentId(uri);
                final String[] split = docId.split(":");
                final String type = split[0];

                Uri contentUri = null;
                if ("image".equals(type)) {
                    contentUri = MediaStore.Images.Media.EXTERNAL_CONTENT_URI;
                } else if ("video".equals(type)) {
                    contentUri = MediaStore.Video.Media.EXTERNAL_CONTENT_URI;
                } else if ("audio".equals(type)) {
                    contentUri = MediaStore.Audio.Media.EXTERNAL_CONTENT_URI;
                }

                final String selection = "_id=?";
                final String[] selectionArgs = new String[]{split[1]};

                return getDataColumn(context, contentUri, selection, selectionArgs);
            }
        } else if ("content".equalsIgnoreCase(uri.getScheme())) { // MediaStore (and general)
            return getDataColumn(context, uri, null, null);
        } else if ("file".equalsIgnoreCase(uri.getScheme())) { // File
            return uri.getPath();
        }

        return null;
    }

    /**
     * Get the value of the data column for this Uri. This is useful for
     * MediaStore Uris, and other file-based ContentProviders.
     *
     * @param context       The context.
     * @param uri           The Uri to query.
     * @param selection     (Optional) Filter used in the query.
     * @param selectionArgs (Optional) Selection arguments used in the query.
     * @return The value of the _data column, which is typically a file path.
     */
    private static String getDataColumn(Context context, Uri uri, String selection,
                                        String[] selectionArgs) {

        Cursor cursor = null;
        final String column = "_data";
        final String[] projection = {column};

        try {
            cursor = context.getContentResolver().query(uri, projection, selection, selectionArgs,
                    null);
            if (cursor != null && cursor.moveToFirst()) {
                final int columnIndex = cursor.getColumnIndexOrThrow(column);
                return cursor.getString(columnIndex);
            }
        } finally {
            if (cursor != null)
                cursor.close();
        }
        return null;
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is ExternalStorageProvider.
     */
    private static boolean isExternalStorageDocument(Uri uri) {
        return "com.android.externalstorage.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is DownloadsProvider.
     */
    private static boolean isDownloadsDocument(Uri uri) {
        return "com.android.providers.downloads.documents".equals(uri.getAuthority());
    }

    /**
     * @param uri The Uri to check.
     * @return Whether the Uri authority is MediaProvider.
     */
    private static boolean isMediaDocument(Uri uri) {
        return "com.android.providers.media.documents".equals(uri.getAuthority());
    }

}